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发明名称
IMPROVEMENTS IN OR RELATING TO GAS SPRINGS
摘要
申请公布号
GB9021517(D0)
申请公布日期
1990.11.14
申请号
GB19900021517
申请日期
1990.10.03
申请人
VINTEN BROADCAST LIMITED
发明人
分类号
主分类号
代理机构
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